What is a 12 Rep Max (12RM)?
Your 12 rep max (12RM) is the maximum weight you can lift for exactly 12 repetitions with proper deadlift form. This higher rep range is ideal for building muscular endurance and improving work capacity, commonly used in fitness training.
Endurance & Work Capacity
Training in the 12-15 rep range significantly improves your ability to perform repeated efforts and builds greater muscular endurance. This translates well to sports and functional activities requiring sustained effort.
Maximize muscle stamina
Sports and real-world strength
Joint-friendly training
Calculate Your 12RM
The weight you can deadlift for exactly 12 reps
We automatically use 12 reps for the calculation
Your 12RM Results
Training Percentages
Training loads based on your 12RM
Enter your 12RM weight
Your results will appear here